高中英语状语从句知识点及练习
完整版)高中英语状语从句讲解及练习
完整版)高中英语状语从句讲解及练习状语从句是指在句中作状语的从句，可以分为时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。
时间状语从句的连词有when、as、while、until、not…until、before、after、since、the minute、the moment、each、every、next、the first time等。
时间状语从句一般使用一般现在时或一般过去时。
当使用when、as、while这三个连词引导时间状语从句时，它们都表示“当…的时候”，但侧重点有所不同。
例如，当使用when引导时间状语从句时，从句的主语与主句主语相同，如果谓语动词是be动词，则从句主语和be可以省略。
而as则不仅表示“当…的时候”，还可以表示“一面…一面”或“随着”。
而while则强调主句的动作和从句的动作同时发生，从句一般用进行时，从句动词必须是延续性动词。
当使用until、not…until时，它们表示“直到…才”。
在肯定句中，主句常用延续性动词；在否定句中，主句常用短暂性动词。
需要注意的是，当not until…位于句首时，主句需要倒装。
例如，“Not until you had explained how did I manage to do it.”It was dark when he finally returned。
XXX the machine type upon seeing it。
As soon as I arrived home。
it began to rain。
Hardly had I arrived home when it began to rain。
XXX: real XXX: if。
even if/though。
unless/if。
not。
as long as/so long as。
as far as/so far as。
provided/providing(that)。
高中英语状语从句讲解与练习
高中英语状语从句讲解与练习高中英语状语从句一、时间状语从句1、when的用法（1）when既可引导一个持续性动作，也可引导一个短暂性动作，可用于表示主句和从句动作同时发生或从句动作先于主句动作，有时还可表示从句动作后于主句，意为“当……时候”。
（2）when在beabouttodo……when……，bedoing……when……，haddone……when……，beonone’sway……when……，beonthepointofdoing…when……等结构中作“那时突然”讲。
（3）when“既然、鉴于；尽管，虽然（位于主句之后）；如果”2、while的用法（1）则表示“当……时候”，鼓励的动作必须就是延续性的。
（2）用做同列连词，则表示相对关系“然而”。
（3）引导让步状语从句，相当于although,意为“虽然”，位于主句前。
（4）引导条件状语从句，相当于as/solongas，意为“只要”。
3、as的用法（1）则表示“当……时候”，特别强调同时出现，不所指先后。
（2）说明两种正在发展或变化的情况，表示“随着”，表示时间的推移。
（3）表示“一边……一边……”（4）强调两个动作紧接着发生。
（5）表示“虽然，尽管”（6）其他含义“正像，正如”，“做为”，“由于，因为”。
4、before的用法（1）一般意为“在……之前”“……才”，“……就”“还没有……”“免得”“不知不觉”“宁可，宁愿”，“否则，要不然”。
（2）itwillbe/was时间段before通常现在时/通常过去时。
在肯定句中，意为“多长时间之后才”；在否定句中，意为“用没法多长时间就”。
5、until和till（1）与肯定句连用，必须是延续性动词。
（2）与否定句属格，必须不为延续性动词，则表示“直至……才，在……之前不……”。
特别注意：notuntil可以用作特别强调句和倒装句强调句：itis/wasnotuntil…that…倒装句：notuntil放句首时，主句要部分倒装。
高中英语状语从句讲解及配 套练习
状语从句状语从句在句中相当于副词做状语, 又叫副词性从句。
状语从句分为时间状语从句、条件状语从句、地点状语从句、原因状语从句、目的状语从句、让步状语从句、结果状语从句和 比较状语从句。
掌握状语从句应当从引导词入手，注意引导词的词义,引导状语从句的引导词都有词义，所以，了解引导词的意思尤为重要。
引导词按意义分为九类: 1）时间 when , as , while , till , until , before , after , since2）地点 where3）原因 because , as , since , now that4）条件 if , unless , once . so （as） long as . in case5）让步 though , whatever （--ever ） as , even though , even if6）目的 so that , in order that7）结果 so ... that8）比较 than , as .. as9）方式 as , as if一、时间状语从句引导时间状语从句的连接词除上述外还有：1）till, not … until …, until, before, sinceDon’t get off the bus until it has stopped.He waited for his father until（till）it was twelve o’clock.It will be five years before he returns from England.常用句型：It is/was/will be …before…要过多久才……It isn’t /wasn’t/won’t be…before…没有多久就……It will be another five days before we finish this task.It is not long before I forgot it all.2）hardly / scarcely … when, no sooner … than, as soon as, once表示“一……就”3）directly, immediately, the moment, the minute that… 一……就He made for the door directly he heard the knock.4）each time, every time, by the time（到……为止）Each time he came to my city, he would call on me.注意：表示未来情况，主句用将来时，从句用现在时。
(完整版)状语从句知识点大全
(完整版)状语从句知识点大全状语从句是一个句子做另一个句子的状语，用于描述、限制、补充或解释主句的动作或状态。
在英语语法中，状语从句非常常见且广泛应用。
以下是状语从句的一些常见知识点：1. 时间状语从句（Time Adverbial Clauses）：用来表示时间，常用的引导词有when, while, as, before, after, until, since等。
例如：I will call you when I arrive home.翻译：我到家时会打电话给你。
2. 地点状语从句（Place Adverbial Clauses）：用来表示地点，常用的引导词有where, wherever等。
例如：She can't find her keys anywhere.翻译：她无论到哪儿都找不到她的钥匙。
3. 原因状语从句（Cause Adverbial Clauses）：用来表示原因，常用的引导词有because, since, as, for等。
例如：I didn't go to the party because I was tired.翻译：因为我累了，所以我没有去参加聚会。
4. 结果状语从句（Result Adverbial Clauses）：用来表示结果，常用的引导词有so, therefore, thus等。
例如：He studied hard, so he passed the exam.翻译：他努力研究，所以他通过了考试。
5. 条件状语从句（Condition Adverbial Clauses）：用来表示条件，常用的引导词有if, unless, provided that等。
例如：If it rains tomorrow, we won't go to the park.翻译：如果明天下雨，我们不会去公园。
6. 目的状语从句（Purpose Adverbial Clauses）：用来表示目的，常用的引导词有so that, in order that等。
高中英语状语从句专项讲解及练习（有答案）
高中英语状语从句专项讲解及练习（有答案）状语从句1、地点状语从句地点状语从句表示地点、方位，这类从句通常由where, wherever, anywhere, everywhere引导。
Where there is a will, there is a way.有志者，事竟成。
They will go where they are happy.他们想到他们觉得快乐的地方去。
We must camp where we can get water. 我们必须在能找到水的地方露营。
地点状语从句与定语从句的区别:在于分句在句中作什么成分。
作状语，则是状语从句；作定语修饰名词，则是定语从句。
where引导定语从句时，从句前应有一个表示地点的名词作先行词；而状语从句前则无需先行词。
如：Go back where you came from.(where引导地点状语从句）Go back to the village where you came from.(where引导定语从句，修饰village)We went home, where we had dinner. (where引导定语从句，修饰home)2、原因状语从句原因状语从句一般由because(因为)，since(既然)，now that(既然，因为)，as(由于)等连词引导。
（1）because表示直接的原因，表示原因的语气最强，常表示必然的因果关系。
回答why引起的特殊疑问句，只能用because。
Jane wore a raincoat because it was raining.因为天下雨，所以詹穿着雨衣。
He is absent today because he is ill.他今天缺课，因为他病了。
（2）since表示对方已经知晓、无须加以说明的原因或事实，语气比because稍弱。
I'll do it for you since you are busy.既然你忙，我来替你做吧。
高中英语语法专项—— 状语从句(九大状语从句详讲+配套练习)
语法专项2——状语从句【状语从句综述】由从句担任的状语，在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。
一、时间状语从句1.表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time等引导。
例如：When I came into the office, the teachers were having a meeting.当我进入办公室时，老师们正在开会。
He started as soon as he received the news. 他已得到这个消息，就出发了。
Once you see him, you will never forget him.一旦你见了他，你就不会忘记他。
No sooner had I gone to bed than I went to sleep.我一上床就睡着了。
2.when, while, as的区别这三个词都可以用作连接词，表示时间关系，但有所区别。
(1)when表示时间关系时，意思常常是“当(在)……的时候”。
主句和从句中的动作或事情可以同时发生，也可以先后发生。
例如：When we were at school, we went to the library every day.我们在求学的时候，每天都到图书馆去。
(2)while 用作连接词表示时间关系时，意思也是“当(在)……的时候”，主句中的动作或事情在从句中的动作或事情的进展过程中发生。
它有时可与when通用，但它只能指一段时间(a period of time)，而不能指一点时间的(a point of time)。
高中英语状语从句讲解及练习
状语从句在复合句中作状语，位置灵活。
状语从句可分为时间状语从句，目的状语从句，条件状语从句，让步状语从句，地点状语从句，原因状语从句，方式状语从句，结果状语从句。
（一）时间状语从句1.when,as,whilea.when表时间，从句既可以用延续性动词，又可以用瞬间动词。
Eg:WhenIgetthereIwillcallyou.如果when引导的时状的主语与主句的主语相同，而从句的谓语又是be动词时，那么从句中的主语与be可省。
Eg：When（youare）introuble,youcanaskherforhelp.如果when引导的时状的主语与主句的主语相同时，往往可以用“when+分词”的形式代替该状从。
Eg：WhenIcameintotheroom(Whencomingintotheroom),Ifoundthelightwasoff.b.while表时间，从句需用延续性动词，或者主句的动作发生在从句的动作进行过程中。
主句的谓语动词通常是非延续性动词。
Eg:HecameinwhileIwasreadingabook.ImetherwhileIwasinschool.c.as表时间，与when相似，但侧重强调主从句动作同在时间点或同时间段进行。
同时可表示主句的动作随着从句的动作的变化而变化。
Eg:Hejumpsashesings.Asthewindrose,thenoiseincreased.2.before(在……之前)与after（在……之后）Eg：Seemebeforeyouleave.IsawthemafterIarrived.3.till与until肯定形式表示的意思是"做某事直至某时"。
否定形式表达的意思是"直至某时才做某事"。
Eg:Waittill/untillIcallyou.等着直到我叫你。
Shedidn'tarrivetill/until6o'clock..她直到6点才到但是置于句首时只可用untill.Untilyoutoldme,Ihadheardnothingofwhathappened.直到你告诉我以前，出了什么事我一点也不知道。
状语从句讲解及习题附答案
状语从句讲解及习题附答案（一）状语从句概述定义状语从句用作状语，是起副词作用的句子。
位置状语从句可以放在主句之前，也可以放在主句之后，时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。
分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。
作用它可以修饰谓语、非谓语动词、定语、状语和整个句子。
（二）状语从句详解1. 时间状语从句引导词用法示例when 意为“当…的时候”。
When引导从句的谓语动词可以是延续性动词，也可以是瞬间动词。
并且when有时表示“就在那时”A liar is not believed when he speaks the truth.说谎者讲真话时也没有人相信。
When he arrives, I’ll call you. When you laugh and smile, your body relaxes.while 意为“在…的时候，在…的同时”。
While引导从句的谓语动词必须是延续性的，发生时间较长，并强调主句和从句的动作同时发生（或者相对应）。
While有时还可以表示对比。
While I was standing at the window, I saw several boys running along the street.While John was watching TV, his wife was cooking.as 意为“一边…一边…”。
As引导的动作是延续性的，发生时间较短，一般用于主句和从句动作同时发生；as也可以强调一前一后。
The writer was angry as he was travelling on a train to London because someone had invaded his “space”.He smiled as he stood up.after 意为“在…之后”。
英语宾语从句定语从句状语从句讲解与练习
He started as soon as he received the news.
Once you see him, you will never forget him.
l在许多带有复合宾语的句子中，that引导的宾语从句经常移到句子的后面，而用it做形式宾语。
例：We think it wrong that he told a lie to everyone (我认为他向每一个人撒谎是错误的)
B，由连词if、whether引导的表示是否的宾语从句。Whether，if在从句中不做句子的成分，一般情况下，whether和if可以替换。
He asked me whether I was a teacher.
They wanted to know what they can do for us.
三，宾语从句的时态。
宾语从句的时态受主句的限制，即：主句是一般现在时态，从句根据实际情况而定。主句是一般过去时态，从句用相应的过去的时态。如果从句的动作发生在主句之前，则从句要用过去完成时态。例:
例：I don’t know what I should do next.
I con’t know what to do next.
He didn’t know where he would live.
He didn’tknow where
定语从句
在主从复合句中充当定语的句子是定语从句，它在句中修饰名词或代词。定语从句一般由关系代词that, which, who(m), whose和关系副词when, where, why等引导。被定语从句修饰的词叫做先行词。定语从句通常放在先行词的后面作后置定语。在中考试题中，主要考查引导定语从句的关系代词和关系副词。
(完整版)高中时间状语从句语法及练习
(完整版)高中时间状语从句语法及练习时间状语从句是一个复合句结构，用来表示时间关系。
在高中英语研究中，时间状语从句是一个重要的语法点。
本文将为你详细介绍高中时间状语从句的语法规则，并提供一些练题目。
一、时间状语从句的定义和用法时间状语从句是用来表示时间关系的从句，它可以在句子中充当状语。
时间状语从句通常使用连词来引导，常见的引导词有：when, while, before, after, as, since, until, etc. 时间状语从句可以出现在主句的前面或后面。
二、时间状语从句的语法规则1. 当主句的谓语动词表示将来时，时间状语从句中的谓语动词可以使用一般现在时代替一般将来时。
例：I will call you when I arrive home.（主句使用了将来时，从句中使用了一般现在时）2. 当主句的谓语动词表示过去时，时间状语从句中的谓语动词可以使用一般过去时或过去完成时代替。
例：She had finished her homework before she went to bed.（主句使用了过去时，从句中使用了过去完成时）3. 当时间状语从句表示一个惯性的动作或一个客观事实时，从句中的谓语动词可以使用一般现在时。
例：I always go for a walk when it is sunny.（从句中表示惯性的动作）三、时间状语从句的练题目1. 选择正确的连词填空：― She fell asleep _______ she finished her book.1) while 2) because 3) after― We will start the meeting _______ everyone ar rives.1) before 2) since 3) until2. 改写句子，将主句的谓语动词改为表示将来时：― I will call you when I have time.3. 改写句子，将主句的谓语动词改为表示过去时或过去完成时：― He went to bed before he finished his work.以上是关于高中时间状语从句的语法规则及练习题目的详细介绍。
高中时间状语从句及练习(含解答)
高中时间状语从句及练习(含解答)状语从句是用来修饰主句中的动词、形容词或副词等的从句。
当状语从句放在主句之前时，通常需要用逗号分隔；而当放在主句之后时，则不需要逗号。
根据其意义和作用，状语从句可分为时间、原因、地点、条件、让步、目的、结果、方式和比较等九种类型。
1.时间状语从句时间状语从句用于表示主句动作发生的时间，通常由when、while、as、before、after、till (until)、once、by the time、as soon as、no sooner。
than和hardly。
when等引导词，以及名词词组XXX等构成。
其中，when表示“在……的时候”，强调“特定时间”。
例如：When spring came。
he felt like taking a trip.When he was eating his breakfast。
XXX.需要注意的是，连词when在状语从句中还有其他含义。
比如，它可以表示突然发生的事，含义为“（正在……时）忽然”；可以表示过早发生某事，意为“（还没……）就”；还可以表示“在……的情况下”，通常译为“虽然”、“既然”、“如果”等。
举个例子：I was just coming along to see you when I ran into Wilson.I hadn’t been reading for half an hour when I heard steps outside.She refuses help when (although) she has many friends.Why do you walk when (since) you have a car?How can I make them understand if they refuse to listen to me。
It's frustrating when you XXX。
高中英语语法：状语从句总结及练习
高中英语语法状语从句总结及练习由从句担任的状语,在句子中可修饰谓语(或其它动词、形容词、副词或是整个句子,它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。
状语从句是一较大的语法项目,也是近几年高考题中常见的一个重要试点。
高考中已考查了时间、让步、地点、条件、目的等状语从句,这些从句仍是今后高考热点,应作充分准备。
同时对方式状语从句也应引起重视。
(一时间状语从句表示时间的状语从句可由when,as,while,whenever,after,before,till(until,since,once,as soon as(或the moment,by the time,no sooner…than,hardly(scarcely…when,every time等引导。
e.g.When I came into the office,the teachers were having a meeting.He started as soon as he received the news.Once you see him,you will never forget him.No sooner had I gone to bed than I went to sleep.(二原因状语从句原因状语从句是表示原因或理由的,引导这类从句的最常用的连词是because,since,as,now that(既然等,for表示因果关系时(它引导的不是从句为并列连词,语气不如because强。
e.g.He is disappointed because he didn't get the position.As it is raining,I will not go out.Now that you mention it,I do remember.(三地点状语从句引导地点状语从句的连词是where和wherever等。
状语从句及练习附答案
状语从句（adverbial clause）复习要点：掌握句法功能，记住连接词语法意义：状语从句是复合句中的一种，整个从句作主句的状语，修饰主句中的谓语动词、形容词、或副词。
置于句首时，状语从句后面一般要有逗号隔开；如果状语从句置于句尾，则从句一般不用逗号。
按照所作的状语和意义可分为时间、地点、原因、目的、结果、条件、让步、方式和比较等九种状语从句。
具体如下：一、时间状语从句（Adverbial Clauses of Time）时间状语从句通常由when,whenever,as,while,before,after,assoon as,since,once,no sooner...then,hardly/scarcely...when,tiLl/until 以及the moment,directly,immediately,the second,thefirst time,next time,every time,等引导。
1.由when,as,while 引导的状语从句：1）when 引导时间状语从句，表示当···，其谓语动词可以是延续性的，也可以是非延续性的，其作用最广泛。
When spring comes,trees turn green,When it rains,I usually go to work by taxi.When we were having lunch,the light went out.I will ring you up when I return.When she pressed the button,the lift stopped.He was eating his breakfast when the doorbell rang.be about to do...when...“就在那/这时，（突然）另一个动作发生了，在这儿只能用when。
高中英语语法_九大状语从句讲解大全(附练习和答案)
【高中语法·状语从句专辑】状语从句和名词性从句、定语从句一样是高考的高频考点。
通过对近年高考题的分析，可以预测2012年对状语从句的考查仍将集中在对引导几大状语从句的连词的考查上。
状语从句是一种作状语用的从句，修饰主句中的动词、形容词、副词或修饰全句，补充说明时间、地点、原因、条件、方式、程度、状态等。
状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点。
九种状语从句及常见的引导词1、【时间状语从句】：when, while, as, before, after, since（自从…以来）, till (until), as soon as(刚一…马上就…), once(一旦), whenever等。
特殊引导词：the minute, the moment, the second, every time, the day，the instant=instantly , immediately , directly, no sooner … than, hardly …when, scarcely … when (1) while 引导的时间从句的谓语必须是延续性动词，常用进行时态。
如果while表示“然而”的时候，就不是时间状语从句；表示“虽然”的时候，是让步状语从句，这是必须放句首且不能倒装。
(2) when 除了表示“当……时”（两个短暂性动作同时发生），还可以表示“就在那时”，在前一个动作刚结束时就发生的新动作。
如I just locked my door when the postman arrived.(3) as 和when一样，表示两个短暂性动作同时发生，还可表示“一边……一边……”“随着…”(4) 党表示“一……就……”的连接词时，可以用到no sooner … than, hardly …when, scarcely … when，但是当hardly, scarcely, no sooner放于句首时，主句必须部分倒装；主句时态用过去完成时，从句用一般过去式。
（完整版）状语从句练习
（完整版）状语从句练习状语从句状语从句：指把一句子当着副词作状语时，修饰动词、或整个句子；根据它在句中的作用可分为时间、地点、原因、条件、目的、结果、让步、方式和比较等从句；状语从句前一般由连词（从属连词）引导，也可以由词组引导。
它常位于句首；若位于句中，常用逗号与主句隔开；位于句尾时可以不用逗号隔开。
一、时间状语从句1. 通常由以下连词弓丨导：when / while / as/ after/ before/ as soon as/ since/ till /until / by the time2. 在时间状语从句中，要注意时态一致。
（主将从现）1）.when 当…..的时候: Mozart started writing music when he was four years old.2）.while 在…期间： He visited a lot of places while he was traveling.3）.as 在…的同时；一边…一边...: He smiled as he stood up.4）.after 在...之后: He left the classroom after he had finished his homework the other day.5）.before 在...之前Mr. brown had worked in a bank for a year before he came here.6）.as soon as 一...就... We bega n to work as soon as we got there. I will write to you as soon as i get home.7）.since 自...以来（至U现在） Mr green has taught in that school since he came to china three years ago.8）till /until 直至U : They walked till /until it was dark. Tom didn ' t leave home till / until his father came back.难点---- as/ when/ while的辨析as when while都表示主、从句动作同时发生，三者差异如下：as表示一边…一边"/随着，强调两个动作同时进行，I am cooking as I am singing.when 当…..的时候，从句动作可在主句动作"之前"或"之后"发生lit was raining hard when （as） i got there. 还可表and then; at that moment （正在那个时候/突然）：I am leaving for Beijing when the phone rang.while 在…期间从句动作为延续性动词或状态词I am cooki ng while I am si ngi ng然而（（表转折，对比）she thought I was talking about her daughter, while I was talking about my daughter.Mother was worried because little Alice was ill, especially as （when/ while） father was away.二、条件状语从句要点：状语从句由连词if （如果）、unless （=if not）（除非）弓I导。
高考英语状语从句知识点技巧及练习题附答案
高考英语状语从句知识点技巧及练习题附答案一、选择题1．Many countries have a Mother’s Day, ________ they don't always fall on the second Sunday in May.A．when B．though C．as D．once2．—We have decided to go for a picnic tomorrow, Jack. Are you going with us?—Well, ______ you are going, so will I.A．when B．since C．if D．while3．______ the environmental impacts of larger plastics are well documented, very little is understood about the dangers associated with micro plastics.A．While B．As C．Because D．If4．Why do many students stick to private tutoring _____ they could easily master such knowledge at school?A．unless B．before C．after D．when5．A Chinese company has created a new facial recognition system that can identify people______ they are wearing masks.A．provided that B．in case C．as though D．even if6．There are other languages that sound extremely different, ________ they’re conveying exactly the same meaning.A．as though B．even though C．so that D．in that7．—Did you return Fred’s call?—I didn’t need to ____ I’ll see him tomorrow.A．though B．unless C．when D．because8．Just underwater grass floats on the surface if it loses its roots, a nation is lost without its memories.A．since B．while C．as D．when9．-I’d like to find a job in the library.-Good idea, ______ it doesn’t affect your studies.A．now that B．as soon as C．as long as D．even if 10．House prices vary from place to place and are usually high ______ there are famous schools. A．where B．when C．which D．whether 11．—Mr. Robert, I’d like to take a gap year to volunteer for a glo bal anti-Aids campaign.—That’s great, ______ you can afford the time.A．provided that B．in case C．even if D．so that12．He hasn’t got any hobbies，________you call watching TV a hobby.A．when B．ifC．unless D．since13．The purpose of the research project has a more different meaning for them than _________. A．that for us B．it has for us C．it did for us D．it did for ours 14．The secretary made a note of it _____ she should forget.A．in order that B．in caseC．so that D．ever when15．---I’d like to play football wi th you, but I have an important thing to attend to.---If you don’t go, ________.A．neither do I B．so will I C．nor will I D．so do I 16．China is playing a key role in controlling the virus. However, it will take long and much effort ________ it is under control.A．until B．after C．before D．unless 17．—Why do people like pop music? I hate it so much.—______ it is not your style, that doesn’t mean it is bad.A．Only if B．Even though C．Nov that D．In case18．_____ never easy, innovation is absolutely possible with adequate training and continuous practice.A．When B．As C．Since D．While19．He was deeply struck by the natural beauty of the West Lake___________he went to Hangzhou.A．at the first time B．the first time C．for the first time D．at the first time when20．He felt a sense of relief _______ he got his medical examination report.A．as long as B．so that C．the moment D．as if21．_________ my heart still beats, I will go on working for the people.A．As soon as B．As far as C．As long as D．As much as 22．Most students are making great efforts to study on line _____ their eyes suffer a lot after long hours' focus on the computer or phone.A．in case B．even if C．now that D．so that 23．You’d better get it prepared ahead of time just ____ something unexpected happens.A．as if B．in case C．even though D．as long as 24．The car in front of us came to________ we almost hit it.A．such a sudden stop that B．a stop so sudden thatC．such a sudden stop as D．so sudden a stop as25．_____ you may meet, you should face the challenge bravely.A．However a serious problem B．What a serious problemC．However serious a problem D．What serious a problem【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【详解】考查连接词辨析。
高中英语状语从句讲解及练习(含答案)
状语从句状语从句在句中作状语，可分为：时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。
一、时间状语从句引导时间状语从句的连词有：when, as, while, until, not…until, before, after, since, the minute, the moment, each( every, next, the first) time等。
时间状语从句中一般用一般现在时或一般过去时。
1．When , while, as都可解释为“当```的时候”但侧重点有所不同。
1)WhenEg: When I arrived home , I had a little rest.注意点：when 从句的主语与主句主语相同，谓语动词是be 动词时，从句主语和be可以省略。
Eg: When (she was) walking along the street, she met her class teacher.2)AsAs 除了表示“当```的时候”，还可表示为“一面```一面”，“随着”Eg: He sang as he danced.(一面```一面)You will grow wiser as you grow older.(随着)3)While表示“当```的时候”强调主句的动作和从句的动作同时发生，从句一般用进行时，从句动词必须是延续性动词。
Eg: While we were working, they were having a rest.While (they were) having a discussion, they got very confused.注意点：while 有对比的含义，解释为“然而”。
eg: I prefer black tee, while he likes coffee.2．until, not…until表示“直到```才”,在肯定句中主句常用延续性动词；在否定句中主句常用短暂性动词。
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高中英语 --- 状语从句一、概念：状语通常由副词、介词短语、动词不定式、分词和从句等担当。
状语从句主要用来修饰主句或主句的谓语。
一般可分为九大类，状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词。
二、分类及使用1.时间状语从句(1) when① .when引导的时间状语从句，其动词既可以是延续性动作的动词，也可以是瞬间性动作的动词，可以表示主句的动作和从句的动作同时发生，或从句的动作发生在主句的动作之前。
when you apply for a job, you must present your credentials.② when 还可表示just then（正在那时）的意思，此时所引导的从句放在主句之后。
we were about to start when it began to rain.,翻译成一边，一边。
(2) as 引导的时间状语从句 as 侧重表示主句和从句的动作并相发生We were having breakfast as she was combing her hair.(3) while“在⋯期间”，所引导的从句的动作是延续性的，并表示和主句的动作同时发生。
(4) before 引导① before“在⋯之前” I’ll be back before you have left.②before“ ⋯之后才” It may be many years before we meet again.(5)as soon as/once/directly/the instant 等引导as soon as 是最常见的表示“一⋯就”的从属连词，其他连词还有immediately ， instantly ，as soon as换用。
the instant (that) ， the minute(that) ， the moment(that) 等，它们通常都可与 As soon as we got home, the telephone rang. I recognized herimmediately I saw her.(6) hardly...when/no sooner...than引导关联从属连词hardly/barely/scarcely...when 和 no sooner...than 的意思是“刚⋯就”，它们所引导的从句中的谓语动词通常为过去完成时。
如：He had no sooner (no sooner had he)arrived home than he was asked to start on another journey.(7) since 引导在含有 since 引导的时间状语从句的复合句中，从句的谓语动词通常为一般过去时，主句的谓语动词通常为现在完成时、过去完成时和一般现在时：We’ve never met since we graduated from the college. 大学毕业后我们就再没见过面。
(8) till/until引导till 和 until 同义，作“直到⋯时(为止)”解。
Donald will remain in college until(till) he finishes his Ph.D course.2.地点状语从句(1) where 引导“在（或到）⋯的地方”Where there is a will, there is a way.(2) wherever 引导wherever=no matter where, 后者只能放句首。
Whereever(no matter where) they went, the experts were warmly welcomed.3.原因状语从句(1) because 引导通常用于回答why 引出的疑问句，从句一般位于主句后面。
I didn ’tgo abroad with her because I couldn ’tafford it.(2) as 引导从句多位于主句之前，通常可以和since 换用。
As I didn ’tknow the way ， I asked a policeman.(3) since 引导从句多位于主句之前，可以和as 换用。
Since traveling by air is much faster,they decided to take a plane.(4) now(that) 引导的原因状语从句 now(that) “既然”， Now(that)you have passed your test you can drive on your own.(5)seeing (that) 引导的原因状语从句 Seeing (that)“鉴于；由于”，通常用于非正式文体。
Seeing (that) the weather is bad，we’ll stay at home.4.目的状语从句(1) in order that 引导“为了；以便” 。
多用于正式文体，可以与so that 换用。
They stopped at Hangzhou in order that they could go around West Lake.(2)so (that) 引导“为了；以便”。
so that 通常可以与 in order that 换用，它所引导的目的状语从句总是放在主句之后，在非正式文体中，常省略that。
如：Speak clearly so that they may understand you.(3) in case/for fear (that)等引导in case， for fear(that) 这俩个从属连词都表示否定目的，意思是“以免”,“以防”。
in case 它所引导的从句中的谓语动词可以是陈述语气形式，也可以是虚拟语气形式；for fear(that)引等情态动词导的从句中的谓语带有 may， might ，shouldTake your umbrella in case it rains.5.结果状语从句(1) so that 引导从句只能位于主句之后，so that 引导什么从句根据句意来判断Suddenly it began to rain heavily, so that it was almost impossible to carry on driving.(2)so...that 引导“如此⋯以致”， that 可以省略， so 后面接形容词或副词。
She spoke so fast that nobody could catch what she was saying.(3) such...that 引导的结果状语从句引导结果状语从句的such...that 的具体内容是：such+a/an+形容词 +名词 +that 从句。
such+a/an+形容词 +单数名词 +that=so+ 形容词 +a/an+单数名词 +that 从句。
The professor told us such a funny story that all the students laughed ．=The professor told us so funny a story that all the students laughed.6.条件状语从句(1)if 引导译成“如果”If I were a bird ,I would fly.(2) unless 引导否定条件状语从句，在意义上相当于if...not ，语气较强，一般不用虚拟语气。
You’ll be late unless you hurry.(3) if only 引导意为“只要；如果” 。
I ’ll let you use the car if only you keep it in good condition.(4) as/so long as 引导意为“只要；如果” 。
As long as it doesn ’train, we can play.(5) provided (that)/providing (that)引导意为“如果；只要” 。
I will agree to go providing that my expense are paid.7.让步状语从句(1)although/though 引导都作“虽然；尽管”解，通常可以换用，Although they have been talking for a long time, he cannot make her believe him.(2)even if/though 引导“即使，纵然”，从句表示的是尚未发生的动作或存在的情况。
Even if I failed again, I will not give up the experiment.(4)while 引导意为“虽然，尽管” ，While I understand your point of view， I do not share it.(5) whatever/no matter what引导作“无论什么”解，(6) whichever/no matter which引导作“无论哪个”解Whichever/No matter which you buy ， there is a six-month guarantee.(7) whoever/no matter who 引导作“无论谁”解You can’tcome in ， whoever you are.(8) however/no matter how 引导作“无论如何⋯”解However high it may be ， it can’treach the sky.(9) whenever/no matter when 引导作“无论何时”解，Whenever I ’m unhappy， he cheers me up.(10) as引导作“虽然；尽管”和“即使”解,此时要用倒装句Strong as you maybe, you cannot lift te as it was, they continued to study.8. 方式状语从句(1) as 引导意为“以⋯方式；如同⋯那样”，从句有时是省略句。
Air is to man as water is to fish.(2) as if/as though 引导作“好像，仿佛”解。
从句往往用虚拟语气，表示与事实相反。
They looked at me as if /as though I were mad.9.比较状语从句(1)as...as 引导表示同级比较，主句中用形容词或副词的原级形式，从句常常为省略句。